Abstract: The disclosure discloses a method for judging and optimizing the comprehensive performance of a twin-screw rotor profile, belonging to the field of compressor design and manufacturing. The method determines the relationship among a contact line length, a leakage triangle and an area utilization coefficient of a compressor rotor profile by establishing an expression of a comprehensive performance index of the performance of the compressor rotor profile, so that during the design of the compressor rotor profile, the performance of the designed compressor rotor profile can be judged according to the method, so as to provide a reference index for optimizing the rotor profile, improve the design efficiency of the compressor rotor profile and provide a high-performance rotor profile for producing a high-performance compressor.

Abstract: Disclosed is a cam curve design method for a cap screwing machine based on a multi-objective method, belonging to the technical field of cap screwing machine cam design. The present disclosure is to solve the problem that the conventional method for redesigning the cam curve cannot optimize the parameters according to the degree of importance such that the operating stability of a cam mechanism is poor.

Abstract: Disclosed is a cam curve design method for a cap screwing machine based on a multi-objective method, belonging to the technical field of cap screwing machine cam design. The present disclosure is to solve the problem that the conventional method for redesigning the cam curve cannot optimize the parameters according to the degree of importance such that the operating stability of a cam mechanism is poor.